As busy moms, we often don't have a second to spare for ourselves or our workouts. That's why doing double duty on our errands and exercise is the best gift we can give ourselves.

That's where the playground comes in. It's just for children, right? Wrong.

It turns out you can get one of the best workouts of your life using only what you find at the playground. Swings, slides, monkey bars, ladders -- all of it can become your own personal ninja warrior circuit!

To make it even more like a game, rest while your child plays -- so in other words, you do an exercise on the slide while she climbs the ladder, then you rest while she slides down. She'll love it, too!